The longest cave in the world is the 'Mammoth Cave System' in the USA at 560,000 mtrs deep!
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The North Atlantic gets 2.5 centimetres (1in) wider every year.
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Check your map! Virginia extends farther west than West Virginia.
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If Antarctica's ice sheets melted, the worlds oceans would rise by 60 to 65 metres (200 - 210ft) - everywhere
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A waterfall known as The Devil's Kettle empties water into a hole and nobody knows where it ends up!
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There are approximately three chickens for every human on Earth.
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One cubic mile of seawater contains about 50 pounds of gold.
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